Frictional gearing.



No. 683,773. Patented- Oct. I, 190i.

' F. M. KIGER.

FRIGTIONAL GEABING.

- (Application filed Nov. 21, 1900. i {No Model.) I

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Wm M WfWfiifi UNITED STATES PATENT ()FFICE.

FRANK M. KIGER, OF PRAIRIE DEPOT, OHIO.

FRICTIONAL GEARING.

.SPECIFIGATION forming part of Letters Patent No. 683,773, dated October 1, 1901. Application filed ll'ovember 21,1900. Serial No. 37,204. (No model) To all whom it may concern.-

Be it known that I, FRANK M. KIGER, of Prairie Depot, county of Wood and State of Ohio, have invented certain new and useful Improvements in Frictional Gearing; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form part of this specification.

My invention has reference to a frictional gearing in which the friction members, preferably in the form of disks, are mounted in frictional engagement,with their axes of rotation in the same plane at right angles to each other.

The object of my invention is to provide effective means for altering the relative position of the friction members, to accomplish change in the direction of rotation, and also variation in speed of the driven member.

In'the drawings, Figure 1 is a perspective view showing the means employed for carrying out the principle upon which my invention operates. Fig. 2 is an elevation to disclose the operation. Fig. 3 is a diagrammatic elevation of the friction members, showing in dotted lines the shifted positions of the driving-disk.

Referring to the parts in illustration of my invention, 1 is a driving member, which is preferably in the form of a disk and is suitably mounted upon a shaft 2, capable of rotation in a frame 3.

4 is a belt from a suitable source of power passing around a pulley 5 upon the end of shaft 2 to effect the rotation of member 1.

Frame 3 is supported by a hanger 6, there being an arm 7 extending from the same, which when actuated will shift the axis of rotation of the driving member.

Sis adriven member mounted upon a shaft 9, suitably supported to rotate in bearings. Driven member 8 is capable of movement longitudinally on shaft 9, so that the same may occupy any position in contact with the friction-face of the driving member.

10 is the extended hub of member 8, havin g an axial bore to fit shaft 9, the same being formed with a'longitudinal slot adapted to engage a feather 11 upon shaft 9.

12 is a shift-arm pivotally supported at 13 and bifurcated at its upper end at 14 to partly encircle and engage a collar 15 upon the extended hub 10 of driven member 8.

16 is a controlling-lever pivoted to the shift-arm 12 at 17, the same extending upward from the point of attachment and terminating in a handle 18 for manual operation. Lever 16 is also extended below its point of attachment to the shift-arm (designated by 19) and is connected by suitable means with the frame 3, the means shown being a bellcrank 20 and connecting-rods 22 and 23, respectively.

The operation is as follows: It is to be assumed that the parts are in the position shown in full lines, Fig. 2, and that the driving-disk is rotated in the direction of the arrow. The axes of the driving-disk and the driven disk are in the same plane at right angles to each other and the driven contacts with the driving disk at the center of rotation of said driving-disk. The driven disk while in this position remains stationary, not rotating either forward or backward. The normal position of the controlling-lever is indicated by a a. If the same be moved to the position b b, the frame 3 will take the position shown in dotted lines, Fig. 2, the motion at the lower end of lever 16 being transmitted, as hereinbefore described. The axis of rotation of the drivingdisk will therefore be shifted below the normal plane of rotation, the position of the disk when shifted also being shown in dotted lines. The normal axis of rotation of the driving-disk may be indi-' cated by a and the shifted position of the axis by b. The shifting of the driving-disk to the position described will change the point of contact of the driving-disk with the driven disk to a point above the center of rotation of the driving-disk, and thereby cause the driven disk because of lateral frictional engagement to move to the position 0. This movement of the driven disk will cause the shift arm 12 to take the position 0, and the controlling-lever because of its pivotal connection with the shift-arm will take the position b a, thereby returning the lower end of the controlling-lever to the position which it occupiedbefore being shifted. It will be ob--" served that the. return of the lower end of the controlling-lever to its original position is practically automatic, being effected by the movement of the driven disk passing over the face of the driving-disk. As the lower end of the controlling-lever is returned to its original position the frame 3 will also resume its normal position and the driving-disk will again take the position shown in full lines, the driven in the position to which it has been moved. The position of the driven disk will depend upon the direction and extent of the throw of the controlling-lever, being at rest when the controlling-lever is in a vertical position, as shown in full lines, Fig. 2, and occupying a position to the right or to the left of the position in full lines, Fig. 2, as the controlling-lever is moved to the right or to the left of its vertical position. The manner in which the driving-disk is shifted in Figs. 1

and 2 is illustrated diagrammatically in Fig. 3. The normal positions of the driving and the driven disks are shown in full lines, and the normal axis of rotation of the drivingdisk is indicated by a. If the driving-disk be rotated in the direction indicated and the axis of the driving-disk be shifted to b, the driven disk will take a position approximate to that shown in dotted lines 0. in like manner if the driving-disk be shifted to the position in dotted lines, with the axis of rotation above the normal plane of rotation, the driven rotation,and means connected with the driven disk to automatically return the axis of the driving-disk to its normal position.

2. In a frictional gearing, a driving-disk rotatably mounted, a'driven disk adapted to coact therewith mounted upon a shaft, having driving connection with said shaft but movable longitudinally thereon, both of said disks having their axes of rotation normally in the same plane, manual means for shifting the axis of the driving-disk out of the normal plane of rotation, and means for communicating the longitudinal movement of the driven disk to the driving-disk to return the axis of the driving-disk to its normal plane of rotation.

3. In a frictional gearing, a movable frame, a drivingdisk rotatably mounted in said frame, a driven disk movable longitudinally upon a shaft and adapted to be rotated by frictional engagement with said driving-disk, a shift-arm having one end pivotally supported, the other end thereof being suitably connected with the driven disk so as to move longitudinally therewith, a controlling-lever pivoted to said shift-arm, and suitable connections for communicating the movement of the controlling-lever to the frame carrying the driving-disk, substantially as described.

In testimony that I claim-the foregoing as my own I afiix my signature in presence of two witnesses.

FRANK M. KIGER. WVitnesses:

CARL H. KELLER, EDNA ROBERTS. 

